a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587

General

Target

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
Size

388KB
MD5

a8d6cc7b661482c5be38c38b19156b43
SHA1

3716a78ee38506d2555333dce99ba052325a60ce
SHA256

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587
SHA512

03291e3fbae671efbf451773bf386eac12d7762f6b0896e36c6aac5145026c25df71934ff379e717e14285ef929c79a19bd71969d779b711d6f53d6b3fc050c5
SSDEEP

12288:fEETDPKgeI8zQJ64ESq52kOetTzll1p14QY:8ObKI8J4Rqf5bl1z4R

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

Loads dropped DLL 1 IoCs

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

pid process

1128 a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\svchost.exe = "C:\\Documents and Settings\\All Users\\Application Data\\Microsoft\\win1ogon.exe"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

Drops file in System32 directory 4 IoCs

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

description	ioc	process
File created	C:\WINDOWS\SysWOW64\dllcache\taskmgr.exe	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
File created	C:\WINDOWS\SysWOW64\taskmgr.exe	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
File opened for modification	C:\WINDOWS\SysWOW64\dllcache\taskmgr.exe	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
File opened for modification	C:\WINDOWS\SysWOW64\taskmgr.exe	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

Modifies registry class 1 IoCs

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\Documents and Settings\\All Users\\Application Data\\Microsoft\\win1ogon.exe"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

pid	process
1128	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
1128	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
1128	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

System policy modification 1 TTPs 4 IoCs

evasion

Modify Registry

T1112

Processes:

a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose = "1"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\StartMenuLogOff = "1"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "1"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind = "1"	a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe

C:\Users\Admin\AppData\Local\Temp\a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe
"C:\Users\Admin\AppData\Local\Temp\a16b624a41afa3a79997ce14a8aa04fab7238ec6c008c4fdff8a675997ee7587.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:1128

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr
Filesize
373KB

MD5
f94d87430033c72c4ef723b40d683bed

SHA1
ab68be086128f3728467c13babb803cda917cbef

SHA256
b5f711d081010a19f4a83ab11390d8ce32db7e88b85f82560d813732c463d118

SHA512
b4799c708fef50ea1b36ef2debad965daba8812a6ea5b94d4c34a99dca940554372428dff514b50d115a9105210481943d17a96c8879a08a0dbbbf357340b961

Download Submit
memory/1128-55-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1128-56-0x0000000010000000-0x000000001017F000-memory.dmp

Filesize
1.5MB

Download
memory/1128-58-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1128-59-0x0000000010000000-0x000000001017F000-memory.dmp

Filesize
1.5MB

Download
memory/1128-60-0x0000000010000000-0x000000001017F000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads